David Miranda, partner of Greenberg, is stopped at a London airport and questioned for nine hours. He’s forced to hand over passwords, threatened with prison, and then has his possessions confiscated, all under legislation designed to combat terrorism. But none of the questioning explores the possibility that he’s involved in terrorism at all.

Of course it’s a scandal. But he’s not alone. 61, 000 people were stopped last year under this act, and over 90,000 the year before. How many terrorism charges were brought as a result? Watch this space.